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Topological properties and dynamics of magnetic skyrmions.

Nature nanotechnology

Particle Size, Neutrons, Nanotechnology, Microscopy, Magnetic Phenomena

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      Abstract

      Magnetic skyrmions are particle-like nanometre-sized spin textures of topological origin found in several magnetic materials, and are characterized by a long lifetime. Skyrmions have been observed both by means of neutron scattering in momentum space and microscopy techniques in real space, and their properties include novel Hall effects, current-driven motion with ultralow current density and multiferroic behaviour. These properties can be understood from a unified viewpoint, namely the emergent electromagnetism associated with the non-coplanar spin structure of skyrmions. From this description, potential applications of skyrmions as information carriers in magnetic information storage and processing devices are envisaged.

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          A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics

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            Author and article information

            Journal
            10.1038/nnano.2013.243
            24302027

            Chemistry

            Particle Size, Neutrons, Nanotechnology, Microscopy, Magnetic Phenomena

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